What is the comparison between potassium humate vs humic acid?

Potassium humate is a water-soluble salt of humic acid, meaning it is easier for plants to absorb, especially when applied through foliar sprays or irrigation systems. Humic acid, on the other hand, is less soluble and is more effective as a long-term soil conditioner. Potassium humate provides an immediate supply of potassium along with humic substances, promoting faster root growth and nutrient absorption. In contrast, humic acid primarily improves soil structure, microbial activity, and water retention over time. Potassium humate is often used when rapid nutrient uptake is needed, while humic acid benefits long-term soil health.